Illuminating device.



A. SUNDH.

ILLUMINATING DEVICE.

APPLICATION FILED m1. 1. 1915-.

1,230,942. 'PatentedJune26,1917.

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ETD STATES ILLUMINATIN G DEVICE.

Specification of Letters Patent.

Patented June 26, 191 '7 Application filed February 1, 1915. Serial No. 5,413.

To all whom it may concern:

Be it known that I, Aueus'r SUNDH, a citizen of the United States, residing in Hastings-upon-Hudson, in the county of Westchester and State of New York, have invented a'new and useful Improvement in Illuminating Devices, of which the folloW-.

ing is a specification. p

My invention relates in general to illuminating devices, and is directed more particularly to a device for illuminating a key hole or safe dial or other objects of a similar nature. 1

One object of the invention is the provi sion of means contained within a door knob or safe dial for effecting the desired illumination. Y

Another object is the provision of a knob in which is contained a small electric lamp and a -suitable source of electric energy for lighting the lamp.

A further object is the provision of an illuminating device contained within the knob and protected from injury from an external source.

Another object is the provision of means for inclosing the Whole apparatus within the knob to protect it from the air, thus prolonging the life of the battery.

At times, when in use on a'safedial for instance, it is desirable to have the device arran ed so that the lamp will remain lightas cylindrical.

ed as ong as desired. I have provided such an arrangement, and at the same time arranged the parts so that moisture'or other foreign substance will not enterto the. in-

terior of the knob.

In the drawings, Figure 1 is a sectional:

side elevation of the knob; Fig. 2 is an end elevation of the knob looking at the switch;

Fig. 3 isan end elevation looking from'the opposite direction to Fig.2; Figs. 4: and 5 show my device applied to a door and safe dial respectively.

Referring to the drawings in detall. the numeral 1 represents the casing of the knob. This casing which is of metal may be of any desired form, but is here shown This casing extends in a left hand direction, Fig. 1, to form a conical extension, 2, on the end of which is formed a boss, 3, which is secured to a squared spindle 4 carried by the door.

The boss, 3, is screw threaded to receive a nut, 5. Projecting from the casing, 1, at about Where it begins to taper is a shoulder 6, L-shaped in cross section. A similar shoulder is provided on the nut 5, at its right hand end as viewed in Fig. 1. Surrounding the extension 2 of the knob is a conical glass shield, 7. When the knob is assembled the shield 7 is dropped over the boss 3 and extension 2, its end resting against a packin 8 which is provided in the shoulder 6. he ring 5 is then screwed on until its shoulder in which packing is also provided abuts the end of the shield 7. This insures the parts being held firmly in place and prevents water or moisture from leaking in around the glass shield to the interior of the knob. The extension 2 is provided with-openings, 9, to permit light from the'interior of the knob to be thrown to the outside around the-knob.

Soldered to the boss 3 at its end where it,

fiector, 10, facing the opposite way to the meets the extension 2 is a conical metal reextension 2. Resting against the base of the extension 2.is a convex lens, 11. Abutting this lens is a metal reflector, 12, which also forms a socket for a small incand SQBnt' cover 15, fitting over and srewed on to the end. of the knob, the inside of the cover pressing against the insulation, 16, sur-' rounding the-battery and insulating it from the knob'and cover.

With theparts in place, one terminal, 17 of the battery bears firmly against the base of the lamp, 13. a

The other terminal, 18, is set at the opposite end of the battery.

Extending through the cover, 15, and concentric therewith is an opening, 19. Spanning this opening is a diaphragm, 20,

soldered fast to the cover. This diaphragm which is of metal, carries a contact, 21, which engages the terminal, 18, of the battery, when the diaphragm is depressed. In the event of its being desired to have the light remain lighted for some time, I have provided a switch lever 22. I This lever which is made of spring metal is pivoted to the cover 15, by a pivot, 23, in such a way that when it is in inoperated position it is under tension. When swung around over the diaphragm it is still under tension enough to depress the diaphragm and cause the contact 21 to engage the terminal 18. In all my figures I have shown the lever in neutral position.

The circuit for thelamp will be from terminal 1 7, through the filament of the lamp, reflector 12, casing, 1, cover 15, diaphragm 20,contact 21 to terminal 18.

It will be seen from the foregoing description that I have provided a knob which will be moisture proof. This is a double improvement over knobs now in use, as not only are,the parts protected from destruction by moisture, but by reason of the knob being practically air tight the life of the bat tery willbe prolonged. v

It will also be seen that my arrangement of reflectors and lens insures a very strong illumination of the parts around the knob.

The. advantage of having the lever 22is obvious, as in the case of reading a safe combination, one would want the light to remain lighted but at the same time would want the handle free to revolve the knob. This of course is possible with my arrangement.

Havingseveral openings in the extension of the knob is another important feature as ,this insures that the light will shine all around the knob. With this arrangement therefore it is not necessary that the keyhole shall be in a particular place as it will be illuminated no matter where it is put relative to the periphery of the knob. That is, in Fig. 1, I have shown it placed below the knob. It might just as well have been put at the side of the knob or above the knob. It would still be illuminated without adjusting the knob. In the case of use with a safe it is desirable to have the whole dial illuminated at once owing to the fact that numbers all around the dial have to be read in advance of the shiftin of the knob. If the light should only shine on one part of the dial at a time the rest of the dial would be in shadow and the arrangement would be of no use at all.

I wish not to be limited to the precise construction and arrangements'of parts herein disclosed, as anyone skilled in the art might make various changes therein without departing from the spirit and scope of the invention.

What I claim is:

1. A door knob with an extension, a bat- .saidflamp, the reflector, lamp and lens betery, electric lamp, contact for the lamp and for the battery, a reflector and lens for the lamp, all inclosed therein, openings in the extension for the light to shine through, a

7 one pole of sald battery and extendmg from 5 -the battery into the extension, a reflector for the bulb, a lens infront of the bulb and the reflector, the extension having openings for the light to shine through, a contact for in- 'termittent use and a device for holding the contacts closed for a desired period of time.

3. In combination, a metal and glass waterproof casing comprising a door handle,

an illuminating device inclosed in said casing, and consisting of a battery, an incandescent lamp a contact for the circuit between the battery and thelight, a reflector for the. incandescent lamp, and a lens in front of ing placed to throw the light through the part of the casing consisting of glass.

4. In combination, a watertight casing comprising a door handle, and consisting of a metal division and a lass division, packing between the metal division and the glass division for completing the casing and making the same waterproof, an il uminating device inclosed in said casing, consisting of a battery, an incandescent lamp, two reflectors' for the lamp, one in front of and the other in the rear of the lamp, and a contact for completing the circuit between the bat.- tery and the light, said lampbeing placed in the center ofthe casing and relative to the m5 glassso that thelight will be distributed around the knob.

5. In apparatus of the class described, the combination of an illuminating device and a source of energy therefor, a liquid tight housing inclosing said illuminating device and said source of energy, comprising a glass portion for the light from the illuminating device to shine through, a flexible metal portion manually operable for .light- 5 ing the illuminating device, a rigid metal portion, and means for holding the glass portion and the flexible metal portion in rigid and liquid tight connection with the rigid metal portion.

. 6. In a door handle, the combination of a casing com rising a rigid metal portion, a fiexlble' meta portion. and a glass portion,

means in the rigid metal portion for applymg the same to a spindle of a door lock,

' a battery, the electric lamp being placed to name tothis specification in the presence of throw the light through the glass portion two subscribing witnesses.

of the Casing a terminal for the battery adapted to ciose a circuit for the lamp AUGUST SUNDH' 5 through the flexible metal portion of the cas- Witnesses:

ing when thesame is operated; WALTER C; STRANG,

In testimony. whereof, I have signed my JAMES G; BEBHELL. v 

